Messages

801

General Mach Discussion / Re: Is my PC too slow or...?

« on: April 20, 2013, 03:05:58 PM »

Well.... maybe not quite as impressive  but I ALSO had to turn mine down to get 0.1G 

here it is at 0.1G

<a href="http://www.youtube.com/v/dDY0QXkL0ig?hl=en_US&amp;amp;version=3" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/dDY0QXkL0ig?hl=en_US&amp;amp;version=3</a>

and here at 0.5G

<a href="http://www.youtube.com/v/B03MQNLUuNc?hl=en_US&amp;amp;version=3" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/B03MQNLUuNc?hl=en_US&amp;amp;version=3</a>

Although it's OK at 0.5 you can hear it *bangs* a tad so that's why I normally have it backed off to 0.25G.

Ian

802

General Mach Discussion / Re: Is my PC too slow or...?

« on: April 20, 2013, 03:49:43 AM »

I would guess that the G17 on every line was killing the planner.

*generally* the higher the accel the better as long as the *robustness* of your machine can handle the increase in jerk.

Ian

803

General Mach Discussion / Re: Is my PC too slow or...?

« on: April 19, 2013, 01:02:29 PM »

You may want to take out all the unnecessary G17 commands. Takes the load time down from 1 minute to less than a second here.

Ian

804

General Mach Discussion / Re: inaccurately Jogging

« on: April 19, 2013, 05:33:35 AM »

With regards to ACCURACY (as Hood has said) you should not factor in your microstepping because their accuracy is LESS than the *usual* 5% of the full step accuracy of stepper motors. If you want the cosy numbers AND a more realistic expression of your machine's ACTUAL accuracy you could go into a screen designer and reduce the decimal places of your DROs from 4 to 2.

Ian

805

G-Code, CAD, and CAM discussions / Re: witch line is the software during the runing?

« on: April 18, 2013, 07:47:17 AM »

I guess we need to ask the question: What is reverse run actually for? Maybe I'm missing something but in plasma at least we have the issue where the fire can go out for various reasons (none of them good) and therefore we want to back up a little and re-start from where we left off. For that we can use "run from here" or "reverse run". But that's it as far as I can see - why would we want to actually CUT backwards? (apart from anything else the "kerf to the left rule" would be violated).

So I guess the question bornaabzar is: WHY do you want to cut backwards?

Ian

806

G-Code, CAD, and CAM discussions / Re: witch line is the software during the runing?

« on: April 17, 2013, 04:09:35 AM »

OK you need to update to a later version. I just checked when Brian did the reverse run fix and it was December last year. I don't know which version he first rolled it out in though.

I understand there are issues with the latest lockdown so you might want to go here and download 43.62 which I think is ok - maybe Hood will step in if I'm wrong.

Ian

807

General Mach Discussion / Re: Newbie with inaccurate machine looking for tips

« on: April 16, 2013, 12:12:38 PM »

No worries.

Ian

808

G-Code, CAD, and CAM discussions / Re: witch line is the software during the runing?

« on: April 16, 2013, 09:43:31 AM »

What version of Mach3 are you using?

Ian

809

General Mach Discussion / Re: Newbie with inaccurate machine looking for tips

« on: April 16, 2013, 09:42:03 AM »

Can you draw a piccy showing what you mean by the workpiece being out of square. Draw it in relation to the sides and gantry of your machine.

Ian

810

General Mach Discussion / Re: Override/Bypass ReConfiguration Estop

« on: April 16, 2013, 08:26:49 AM »

That would be a safety thing Stefan and for that reason cannot be bypassed.

Ian